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Engineering and Manufacturing Materials

Quick questions on Material testing and Young's modulus - CCEA GCSE Engineering and Manufacturing

4short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is young's modulus?
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So a tensile test gives the load and extension, from which you find stress and strain, and their ratio is Young's modulus.
What is q1?
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Write the equation for tensile stress and state its unit. [2 marks]
What is q2?
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A bar of area 2.0×105 m22.0 \times 10^{-5}\ \text{m}^2 carries 3000 N3000\ \text{N}. Find the stress. [2 marks]
What is q3?
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Why does strain have no units? [1 mark]

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